STEICHEN, A. Heywood et Frechet:L. Equation de Fredholm. The Journal of the Indian Mathematical Society, [S. l.], v. 4, n. 5, p. 178–179, 1912. DOI: 10.18311/jims/1912/17770. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/17770. Acesso em: 1 may. 2024.